1901,20.6,21,20.5,20.1,19.3,17.7,17.1,18.2,19.1,19.7,19.7,20.4
1902,20.4,20.2,20.6,20,19.3,17.5,17.7,17.8,19.1,19.6,20.1,20.8
1903,20.9,21.6,20.6,19.5,18.5,17.3,17.1,17.3,18.9,19.2,19.2,19.5
1904,19.7,19.8,19.8,19.4,18.3,17.7,16.8,17.7,18.6,19.2,19.9,20.4
1905,20.4,21,20,19.9,19.2,18.1,17.5,17.7,18.6,19.8,20,20.2
1906,20.7,20.8,20.6,20.1,18.9,17,17.1,17.6,18.9,18.9,20,19.9
1907,20.3,19.8,20.7,19.3,18.8,17.6,16.8,17.6,18.9,19.3,19.9,20.6
1908,20.8,20.4,20.6,19.9,19.1,18,16.8,17.1,18.4,18.6,19.4,20.2
1909,20.1,20,20.5,19.3,19.1,16.7,16.7,17.1,18.7,19.3,19.5,20
1910,19.7,20,19.4,19.8,18.4,17.8,16.9,17.5,18.7,19,20.1,20.1
1911,19.9,21,19.7,20.1,18.8,17.4,17.4,17.9,19.2,20,20.2,21.3
1912,21.5,21.2,21.4,20.4,19.4,18.2,17,17.9,18.7,19.4,19.4,20.3
1913,20.4,20.7,20.6,19.5,18.3,17.4,17.4,17.3,18.3,19.4,20.2,21
1914,20.9,21.4,21.1,20.1,19.7,18,17.6,18.1,18.8,19.1,19.7,21.3
1915,21.9,21.4,22.2,21.3,20.3,17.7,17.3,18.1,18.5,19.7,19.5,20.6
1916,20.7,20.3,20.3,19.7,18.6,16.5,16,16.8,18.8,18.9,18.5,19.7
1917,19.8,19.3,20.3,19.2,18,16.9,16.5,17.3,17.7,18.7,19.4,19.1
1918,20.5,20.4,21.5,19.3,18.2,18.6,17.5,18.9,19.6,20,20.9,21.7
1919,22.4,22.9,21.7,20.2,20.2,17.7,17.5,17.6,20.2,20.5,20.9,21.7
1920,21.6,21.9,21.4,20.4,19.3,17.3,17.7,17.6,19.8,20.8,21.6,22.3
1921,21.3,20.7,21.2,20,19.2,16,17,17.3,18.9,19.8,20.6,22.1
1922,22,21.9,21.7,20.7,18.9,18,17.6,17.9,19.7,19.6,20.5,21.6
1923,20.1,20.5,20.6,19.5,19.2,18,17.6,18.2,19.5,19.6,20.8,20.8
1924,22,21,21,20.4,19,17.6,17.2,17.5,18.6,19.4,19.7,20.2
1925,20.2,19.6,20,20.1,19.8,18.2,17.1,18.9,18.7,20.5,20.6,21.6
1926,22.5,22,20.9,20.3,19.4,18.4,17.3,18.3,20,21.5,22.2,22.3
1927,22,21.6,21.8,20.3,19.1,17.9,17.2,18.2,20.2,21.5,21.9,22.7
1928,22.3,22.4,20.9,20.4,20.2,18.1,17.2,18.2,19.8,20.6,22.1,22.4
1929,22.5,21.8,21.7,20.3,19.5,18.2,17.3,17.9,19.5,20.6,21.5,22.1
1930,21.5,21.3,20.8,20.2,19,18.1,17.3,17.5,18.6,20.8,21.4,22.8
1931,22.5,22.2,21.2,20.7,19.9,18.3,17.1,18.4,19.5,21,22.2,21.9
1932,21.7,21.9,21.2,20.2,18.3,17.2,17.8,18.3,19.7,20.9,21.5,22.1
1933,21.9,21.4,21.5,20.1,19.1,17.7,16.8,18.1,19.8,19.8,21,22.2
1934,21.1,20.3,21.5,19.9,19.4,18.3,17.3,17.4,18.8,20.8,21.2,22.1
1935,21.6,21.5,21.7,19.9,18.8,17.8,17.3,17.5,19.5,21.3,21.4,22.3
1936,21.7,22,20.9,20.3,20,17.7,17.4,17.9,19.7,20.9,21.1,22.2
1937,21.6,21.1,21.3,21,19.9,18.8,18.8,19.4,20.3,20.8,22.2,22.4
1938,22,21.6,21.6,21.1,19.8,18.2,18.4,18.9,20.3,20.5,21.5,22.1
1939,21.5,21.6,21.7,21.9,19.8,19.3,18.7,18,19.9,21.4,21.5,21.9
1940,21.8,22.5,22.2,21.2,20.3,18.9,18.9,18.4,20.5,21.6,22.4,21.9
1941,22.7,21.6,22.5,21.5,20.7,18.7,18.5,19.7,21.1,22.3,22.6,23
1942,23.2,22.8,22.1,21.9,21.2,19.6,19.1,20.3,20.9,22.2,22.8,22.8
1943,23.5,22.7,22.1,22.1,21.1,19.6,19.4,19.7,20.4,22.1,22.7,22.7
1944,22.5,22.1,21.1,22.2,21.4,20.2,18.3,19.8,21.1,22,22.1,23
1945,22.7,22.1,22.4,21.8,20.6,17.5,18.9,19.8,20.7,21.6,21.6,21.9
1946,22.1,22.4,21.8,20,19.1,19.5,17.2,19.2,20.5,21.6,20.1,20
1947,22.1,21.9,21.7,21.4,20.3,17,16.6,16.6,20.5,21.1,21.4,20.1
1948,22.6,20.2,19.6,19.3,20.1,18.7,16.9,19.1,20.2,20.7,21.1,21.2
1949,20.6,20,20.5,19.4,20.4,19,16.4,18.6,20.2,21.2,22.2,22.4
1950,20.4,20.4,19.8,19.7,19.9,18.7,17.2,19.3,20.7,21,22.1,20.1
1951,20.7,20,20.8,19.4,19.6,17.7,17.1,17.3,19.4,20.5,20.5,21.5
1952,20.9,19.9,21.3,19.3,18.2,14.7,15.3,16.1,17.3,20,20.2,20.3
1953,20.1,20.8,20.3,19.7,17.9,16.9,15.2,17.9,19.8,20.5,20.4,21.3
1954,20.6,20.4,20.4,20.2,18.4,17.6,16.7,18.7,19.2,19.3,20.2,20.2
1955,19.7,20.3,20,19.8,18.3,17.8,15.6,17.3,19.6,19.7,21.4,20.4
1956,19.9,20.2,20.5,18.9,17.3,15.9,16.6,16.6,20.2,19.5,20.4,21.4
1957,20.8,20.7,20.3,18.8,18.8,17.2,14.9,16.9,17.9,19.6,20.3,21.1
1958,22.2,22.6,22.3,21.7,19.9,20.8,21.1,18,21,21.7,20.3,21.8
1959,22.1,22.1,22.1,22,20.3,20.3,20.2,15.9,18,19.1,20,21
1960,22,21.2,20.6,19,16.3,19.6,18.1,20.8,21.3,20.3,18.8,21.5
1961,21.1,21.2,21.1,20.6,20.2,18.2,16.4,19.4,22,20.8,21.1,21.6
1962,20.9,20.9,21.2,21.4,20.1,18.6,20.1,20.9,21.5,22.6,21.9,22.8
1963,22.2,22.2,20.8,21.7,19.8,18.5,16.4,19.3,20.4,20.9,20.5,21.2
1964,21,21.8,21,20.8,20.3,20,18.3,19.8,20,21.8,20.1,21.9
1965,22.7,22.2,22.2,21.6,19.7,19.7,18.7,17.9,21,21.4,20.5,22.1
1966,21.8,21.5,20.4,21.2,21.3,16.8,18.3,19.5,20.4,21.2,20.9,22.3
1967,21.2,20.6,21.2,19.7,18.5,19,18.8,19,18.8,20.5,20.3,22
1968,21.4,21.9,21.7,21.5,20.1,17.4,17.9,19.1,21.3,21,21.3,22.4
1969,22.6,21.5,20.9,21.5,19.6,18.9,17.7,19.2,21.3,21.7,21.4,21.6
1970,21,20.3,21.3,20.1,18.7,17,18.5,17.9,20.1,19.4,20.5,21.4
1971,21.3,21.1,20.9,19.9,19.9,19.3,17.9,17.4,19.6,20.5,20.4,21.7
1972,21.5,21.2,21.9,21.5,19.2,18.3,17,17.6,21,21.4,21,22
1973,21.3,20.5,21.4,20.1,19.9,17,16.4,16.8,17.5,19.3,20.6,20.3
1974,20.4,20.5,19.9,20.3,17.9,17.4,15.3,16.9,18.8,20.1,20.9,20.5
1975,19.7,20,19.2,18.8,17.3,16.4,18.1,19.3,19,21.5,21.2,20.9
1976,21.8,20.3,21.4,20.2,19,18.5,19.8,18.2,19.8,19.7,20.1,21.3
1977,20.7,21.5,21.9,20.9,19.1,18.7,17.9,16,18.8,19.8,20.6,20.5
1978,20.2,20.5,19.6,18.6,17.9,15,16.8,18.4,17.9,20,20.5,21.2
1979,22.1,20.4,20.4,20.3,18,16,16.2,16.7,17.8,19.1,21.6,21.1
1980,20.7,20.4,20.3,19.7,18.2,17.4,16.5,16.9,17.9,19.5,20.4,20.8
1981,20.1,20.3,20.6,19.7,18.4,16.4,15.5,17,17.3,19.4,20.5,21.2
1982,21.2,20.3,20.4,20.4,18.5,18.9,18.4,17.3,18.4,19.6,20.8,18.7
1983,22.3,22,20.3,22.1,20,15.7,18.1,18.1,17.9,19.3,20.6,20
1984,19.6,20.4,21.5,19.3,18.4,18.2,17.3,17.4,18.3,21.7,20.1,22
1985,21.1,20.3,21.6,17.5,20.4,17.7,18.3,16.6,18.6,19.7,20.7,22
1986,21.3,20.1,21.1,20.7,20,17.9,16.8,17.5,18.7,19.7,20.3,21.8
1987,21.7,20.2,21.1,19.6,18.7,17.8,18.7,17.4,18.3,20.8,21.7,21
1988,21.1,20.7,21.9,21.3,17.4,16.2,15,17.6,19.7,19.7,20.7,20.6
1989,19.9,19.9,19.3,19.7,18.2,17.4,16.3,18.5,17.1,19.1,20.2,21.8
1990,20.2,20.2,20.4,19.8,19.6,16.6,14.3,16.5,18.5,20.6,20.8,20.9
1991,21.3,20.3,21.1,21,19.2,18.1,16.6,16.7,21.5,20.9,20.4,21.4
1992,21.2,21.4,22.4,20.8,20.6,19.2,15.8,17.5,17.9,20.1,20,21.8
1993,20.9,20.7,21.1,20.7,19.1,17.7,17.2,17.4,19.1,21.4,20.4,22.2
1994,21.6,21.3,22.2,21.2,20,18.7,18.1,18.9,19.4,20.3,21.2,21.9
1995,21.9,21.6,22,19.7,17.2,18.7,17.1,18.1,20.1,21.6,21.2,22.2
1996,20.7,21.5,21,21.1,20,16.7,18.2,19.8,18.8,20.9,19.9,22
1997,21,20.7,20.7,20.5,19.5,18.3,18.5,17.1,20.1,21.2,20.7,21.7
1998,23.1,22.7,22.6,21.4,20.3,17,19.8,17.8,18.2,20,19.8,21.2
1999,21.5,20.6,21.4,19.7,19.8,17.2,17.8,16.6,21.6,19.4,21,20.3
2000,20.8,20.4,20.4,21.2,19.5,16.9,15.3,20.7,19.4,19.7,21.3,21.1
2001,21.4,21.6,20.5,20.8,18.3,16.8,17.6,18.2,19.5,20.5,21.6,21.2
2002,21.5,20.7,20.7,20.7,19.4,17.6,17.1,19,19.1,20.5,20.1,21
2003,21.2,20.5,21,19.4,19.3,19,17.7,16.8,19.2,19.7,20.3,21.1
2004,21.4,20.8,21.3,20.9,18.8,17.2,17.1,17.5,19.2,20.5,21.2,21.4
2005,21.9,21.1,21.3,21.2,19.7,19.5,17.6,18.5,18.2,19.1,20.3,21.2
2006,21.3,21,21.4,21.4,19.9,19,19,17.4,20,20.9,20.4,21.1
2007,21.5,21.4,21.1,20.7,17.8,18.2,16.8,17,18.4,20.2,20.8,21.2
2008,21.1,20.7,20.8,20.5,18,16.1,18.3,19.1,18.1,20.1,20.9,21.1
2009,21.1,20.9,21.1,21,19.7,17.7,18.4,18.4,18.7,20.6,21.5,21.3
